Feed-water heater.



G KIEREN FEED WATER HEATER.

APPLICATION rum) MAY 16, 1904.

WWW/2W UNITED STATES PATENT @FFICE.

CONRAD KIEREN, OF APPLETON, WISCONSIN, ASSIGNOR OF TWO-THIRDS TO WILLIAM TIMM AND THEODORE J. SGHOTT, OF APPLETON, WIS- CONSIN.

FEED-WATER HEATER.

Specification of Letters Patent.

Patented Dec. 26, 1905.

To all whom, it may concern:

Be it known that I, CONRAD KIEREN, residing in Appleton, in the county of Outagamie and State of Wisconsin, have invented new and useful Improvements in Feedater Heaters and Purifiers, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relates to feed-water heaters and purifiers, and has for its object to remove impurities from water fed to boilers or for other uses and at the same time to raise the temperature of such water.

Another object of this invention is to accomplish the above results by causing the water to follow a sinuous course in close relation to a heating medium, such as steam, with suitable means provided for drawing ofl' the sediment of impurities deposited by the heating of the water.

With the above objects in view the invention consists in the devices and parts and their equivalents, as hereinafter set forth.

, Referring to the accompanying drawings, in which like characters of reference indicate the same parts in the several views, Figure 1- is a vertical sectional view of a feed-water heater and purifier embodying the principles of this invention. Fig. 2 is a transverse section thereof on the line 2 2 of Fig. 1, and Fig. 3 is a similar view taken on the line 3 3 of Fig. 1.

In the views, 5 represents a cylindrical casing which is preferably mounted in a vertical position, as shown, by suitable supporting means, such as legs 6, bolted to a flanged ring 7, which is securely riveted to the lower end of the casing 5, and to which is also bolted the concaved head 8, which is provided with a valved mud-draw-ofl' pipe 9 for the purpose of discharging the mud or other impurities which may be deposited thereon by means which will be later more fully described.

At the upper end of the cylindrical casing 5 a dome-head 10 is secured by being bolted to the flanged ring 11, which is riveted to the upper end of the cylindrical casing 5, and between the said flanged ring 11 and the domehead 10 is secured the partition 12.

In the center of the dome-head 10 is provided a shouldered seat 13, into which fits a plate 14, carrying a water-inlet pipe 15, to communicate with the central tube 16, which .lower end of the central tube 16.

Fitting within an annular upwardly-projecting flange 20 on the top surface of the partition 19 is an upwardly-extending tube 21, surrounding the central tube 16 and slightly 7 larger than said central tube, so as to provide a passage therebetween in continuation of the passage-way between said central tube and the chamber 18. -The tube 21 does not eX- tend as high as the partition 12; but at its intermediate portion it is provided on its exterior with a shouldered flange 22, with which fits a tube 23, which does extend to the partition 12 and fits within the central circular opening therein, which opening is covered by 30 a disk 24, having a central opening larger than the tube 16 and also provided with perforations 25, so that water may pass from the space between the central tube 16 and the tube 23 to the space within the dome-head 5 outside of the central tube 16.

A circular series of vertical pipes 26 surrounds the tube 23 and connects the space above the partition 12 with the space beneath partition 19, and a deflecting funnel-shaped 9 baflie-plate 27 directs the water issuing from the series of pipes 26 to the center of the mud-drum formed between the concave head 8 and the partition 19. Water may pass from the upper part of said mud-drum, by way of pipe 28, through a bushing 29 in the upper end of the cylindrical casing 5 to connect with the boiler or other device to be supplied with the heated purified water.

A suitable means is provided for heating the water in its several passages, such as by admitting live or exhaust steam through a valved-pipe 30 to the upper end of the cylindrical casing 5, beneath the partition 13, and allowing for its being withdrawn through 5 a valved outlet-pipe 31 at the lower end of the cylindrical casing 5, above the partition 19.

It is obvious that the steam or other heating medium in its passage from pipe 30 to pipe 31 will surround the tube 23 and the lower end of tube 21 and also surround the series of pipes 26 and the water-outlet pipe 28.

A branch pipe 32 leads from pipe 30, through the cylindrical casing 5 and the partition 19, to the lower end of the chamber 18, at one side thereof, so that steam is admitted byway of said pipe 32 to the lower end of the chamber 18, where it will circulate throughout the chamber 18 and finally pass out at the lower end of the said chamber on the side opposite its admission byway of pipe 33, which passes through the partition 19 and the cylindrical casing 5 and joins with pipe 31.

From the foregoing it will be seen that water admitted to the device through the supply'pipe 15 passes in a thin film around the 'chamber 18, where it is subjected to the heat of the steam circulating within said chamber, and then, passing with considerable speed, which will prevent the impurities settling here as a result of the heating, it passes upward still in a thin film around the central tube 16, where it is further subjected to the heat of the steam surrounding the tube 21. IVhen it reaches the upper end of the tube 21, it has a comparatively large settling-space Within the tube 23, where the impurities freed by the heating of the water are permitted to settle to the bottom of the tube 23 and may be drawn oif through a valved draw-off pipe 34:, which passes "from the lower end of the tube 23 through a bushing 35 in the side of the cylindrical casing 5. The partially-purified water passes from the tube 23 at its upper end, through the openings in disk 24, to the space within the dome-head 10, where it is discharged through the circular series of pipes 26, again passing through the steamheating space within the casing 5, where it is subjected to intense heat, and on issuing from said pipes in the mud-drum it is deflected centrally by the bafiie-plate 27, and by reason of the large capacity of the mud-drum it is given the opportunity to deposit the remainder of the impurities contained therein be- "fore departing by way of pipe 27, so that it is quite free of its impurities and at a high temperature suitable for boiler-feeding pur poses when it leaves the device.

The valved vent-pipe 17 permits of the removal of the air contained within the chamber 18 when necessary to enable the steam to quickly and completely fill the chamber 18; but this may be dispensed with when desired. Furthermore, it is obvious that if it should be found desirable another draw-ofi pipe could be provided for the lower end of tube 21 similar to the pipe 34; but it is intended that the speed of the water flowing at this point will be suflicient to carry the impurities separated by the preliminary heating to the upper end of the tube 21, so that they may settle in the tube 23 and be drawn off by pipe 34.

What I claim as my invention is- 1. In a water-heater, a casing, a pair of telescoping tubes forming a sinuous passage for the water, and a heating-chamber projecting part way within the inner tube and reducing the area of the passage therethrough at such part thereof, whereby a comparatively slight preliminaryheating of the water will be produced during the comparatively slow travel of the water through the unreduced port-ion of the inner tube and subsequently a greater heating of the water will be produced during the faster travel thereof through the reduced portion of the inner tube around the heatingchamber.

2. In a water-heater, a casing, a tube therein closed at one end, a second tube closed at one end and telescoping with its other end the open end of the first-named tube, and a heating-chamber projecting part way within the open end of the first-named tube and reducing the area of the passage therethrough, whereby a comparatively slight preliminary heating ofthe water will be produced during the comparatively slow travel of the water through the unreduced portion of the inner tube and subsequently a greater heating of.

the water will be produced during the faster travel thereof through the reduced portion of the inner tube around the heating-chamber.

3. In a device of the character described, a casing, a tube therein closed at one end, a second tube closed at one end and telescoping with its other end the open end of the firstnamed tube, a heating-chamber projecting part way within the open end of the firstnamed tube and changing the area of the passage therethrough, and a vent-pipe for the heating-chamber.

4. In a device of the character described, a casing, a standing tube therein, and a second tube surrounding the upper end of the firstnamed tube and having its lower end closed to constitute a settling-chamber.

5. In a device of the character described, a casing, a standing tube therein, a second tube surrounding the upper end of the first-named tube and having its lower end closed to constitute a settling-chamber, and a valved drawotf pipe through which the sediment in the settling-chamber may be removed.

6. In a device of the character described, a casing, a standing tube therein, a second tube surrounding the upper end of the first-named tube, and a shouldered flange on the firstnamed tube fitting and closing the lower end of the second tube to form a settling-chamber thereof.

7. In a device of the character described, a casing, a tube therein closed at one end, a second tube closed at one end and telescoping with its otherend the open end of the firstnamed tube, a shouldered flange at the intermediate portion of the second tube, and a third tube fitting with and closed by said shouldered flange and extending above the upper end of the second tube to constitute a settling-chamber.

8. In a device of the character described, a casing, a tube therein, a second tube closed at one end and telescoping with its other end the open end of the first-named tube, a heatingchamber within the first-named tube, a heating-pipe leading to and from the casing, and a branch pipe connecting the heating-chamber with said heating-pipe.

9. In a device of the character described, a casing, heads closing the ends of the casing, a pair of partitions within said casing, a tube fitting within the upper head and passing through an opening in the upper partition and extending to near the lower partition, a heating-chamber projecting from the lower partition into the said tube, a second tube mounted on the lower partition and surrounding the first-named tube, said second tube terminating below the upper partition, a shouldered flange around the intermediate portion of the second tube, a third tube fitting upon and closed by the shouldered flange and also fitting within the opening of the upper partition, a perforated plate surrounding the first-named tube and resting upon the upper partition, a series of pipes connecting the space above the upper partition with the space below the lower partition, an outlet-pipe leading from the space below the lower partition and means for conveying heat to the interior of the casing and the heating-chamber, substantially as described.

10. In a device of the character described, a casing, heads closing the ends of the casing,

-a pair of partitions within said casing, a tube fitting within the upper head and passing through an opening in the upper partition and extending to near the lower partition, a heating-chamber projecting from the lower partition into the said tube, a second tube mounted on the lower partition surrounding the firstnamed tube, said second tube terminating below the upper partition, a shouldered flange around the intermediate portion of the second tube, a third tube fitting upon and closed by the shouldered flange and also fitting within the opening of the upper partition, a perforated plate surrounding the first-named tube and resting upon the upper partition: a series of pipes connecting the space above the upper partition with the space below the lower partition, a funnel-shaped deflecting-plate secured beneath the lower partition and deflecting the water issuing from the said pipes to the center of the space beneath the lower partition, an outlet-pipe extending from said space below the lower partition through said partition and through the heating space between the two partitions, draw-off pipes for the third tube and the space beneath the lower partition, means for admitting heat to the interior of the casing and the heatingchamber, and a vent-pipe for the heating-chamber.

In testimony whereof I aflix my signature in presence of two witnesses.

CONRAD KIEREN.

Witnesses:

T. J. SoHoT'r, P. A. KORNELY. 

